An accurate edge‐based FEM for electromagnetic analysis with its applications to multiscale structures

This paper introduces an accurate edge-based smoothed finite element method (ES-FEM) for electromagnetic analysis both two-dimensional cylindrical and three-dimensional Cartesian systems, which shows much better performance in terms of accuracy numerical stability mesh distortion compared with the traditional FEM. Unlike FEM, computational domain ES-FEM is divided into non-overlapping smoothing domains associated each edge elements, triangles tetrahedrons domain. Then, gradient technique used to smooth components stiff matrix Several experiments are carried out validate its stability. Results show that can obtain more results FEM almost independent distortion.